<center>
<b><font size="+2">Entering Vectors</font></b>
</center>

<ul type="square">

<li><u>Predefined vectors i, j, and k</u>
<blockquote>
<tt>i</tt> &nbsp; is the same as &nbsp; <tt>&lt;1,0,0&gt;</tt><br />
<tt>j</tt> &nbsp; is the same as &nbsp; <tt>&lt;0,1,0&gt;</tt><br />
<tt>k</tt> &nbsp; is the same as &nbsp; <tt>&lt;0,0,1&gt;</tt><br />
</blockquote>
</li>

<li><u>A vector may be entered using angle brackes and commas, or adding multiples of i, j, and k:</u>
<blockquote>
<tt>&lt;4.5, 3/7&gt;</tt> &nbsp; and &nbsp; <tt>4.5i + 3/7j</tt> &nbsp; are valid vectors in 2 dimensions<br />
<tt>&lt;pi,e,2&gt;</tt> &nbsp; and &nbsp; <tt>pi i + e j + 2 k</tt> &nbsp; are valid vectors in 3 dimensions 
</blockquote>
</li>

<li><u>If the answer is more than one vector:</u>
<blockquote>
Enter your answer as a comma-separated list of vectors, for example: &nbsp;&nbsp;
<tt>&lt;4,3&gt;, &lt;5,10&gt;</tt> 
</blockquote>
</li>

<li><u>If there are no solutions:</u>
<blockquote>
Enter &nbsp; <tt>NONE</tt> &nbsp; or &nbsp; <tt>DNE</tt> &nbsp; (this may vary from problem to problem)
</blockquote>
</li>

<li><u>Examples of constants used in vectors:</u>
<blockquote><tt>pi</tt>, <tt>e = e^1</tt></blockquote>
</li>

<li><u>Functions may be used in each coordinate of a vector, but may not be applied across the parentheses or commas:</u>
<blockquote>
<tt>&lt;sqrt(2),sqrt(5)&gt;</tt> &nbsp; is valid, but &nbsp; <tt>&lt;sqrt(2,5)&gt;</tt> &nbsp; is not
<br /> 
<br />
<a href="http://webwork.maa.org/wiki/Available_Functions" target="_new">Link to a list of all available functions</a>
</blockquote>
</li>

</ul>
